the-other-tim-brown commented on code in PR #11381:
URL: https://github.com/apache/hudi/pull/11381#discussion_r1623757086
##########
hudi-common/src/main/java/org/apache/hudi/internal/schema/utils/AvroSchemaEvolutionUtils.java:
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@@ -113,6 +120,21 @@ public static InternalSchema reconcileSchema(Schema
incomingSchema, InternalSche
typeChange.updateColumnType(col, inComingInternalSchema.findType(col));
});
+ // mark columns missing from incoming schema as nullable
+ Set<String> visited = new HashSet<>();
Review Comment:
@nsivabalan the current behavior will set null values for the missing data
in the rows themselves but it does not set the column as nullable in the
schema, that's what this patch is aiming to fix.
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